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Cardiac Auscultation

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https://www.readbyqxmd.com/read/28150431/should-learners-reason-one-step-at-a-time-a-randomised-trial-of-two-diagnostic-scheme-designs
#1
Sarah Blissett, Deric Morrison, David McCarty, Matthew Sibbald
CONTEXT: Making a diagnosis can be difficult for learners as they must integrate multiple clinical variables. Diagnostic schemes can help learners with this complex task. A diagnostic scheme is an algorithm that organises possible diagnoses by assigning signs or symptoms (e.g. systolic murmur) to groups of similar diagnoses (e.g. aortic stenosis and aortic sclerosis) and provides distinguishing features to help discriminate between similar diagnoses (e.g. carotid pulse). The current literature does not identify whether scheme layouts should guide learners to reason one step at a time in a terminally branching scheme or weigh multiple variables simultaneously in a hybrid scheme...
February 2, 2017: Medical Education
https://www.readbyqxmd.com/read/28150025/initial-field-test-of-a-cloud-based-cardiac-auscultation-system-to-determine-murmur-etiology-in-rural-china
#2
Lee Pyles, Pouya Hemmati, J Pan, Xiaoju Yu, Ke Liu, Jing Wang, Andreas Tsakistos, Bistra Zheleva, Weiguang Shao, Quan Ni
A system for collection, distribution, and long distant, asynchronous interpretation of cardiac auscultation has been developed and field-tested in rural China. We initiated a proof-of-concept test as a critical component of design of a system to allow rural physicians with little experience in evaluation of congenital heart disease (CHD) to obtain assistance in diagnosis and management of children with significant heart disease. The project tested the hypothesis that acceptable screening of heart murmurs could be accomplished using a digital stethoscope and internet cloud transmittal to deliver phonocardiograms to an experienced observer...
February 2, 2017: Pediatric Cardiology
https://www.readbyqxmd.com/read/28113792/identification-of-location-specific-feature-points-in-a-cardiac-cycle-using-a-novel-seismocardiogram-spectrum-system
#3
Wen-Yen Lin, Wen-Cheng Chou, Po-Cheng Chang, Chung-Chuan Chou, Ming-Shien Wen, Ming-Yun Ho, Wen-Chen Lee, Ming-Jer Hsieh, Chungchih Lin, Tsai-Hsuan Tsai, Ming-Yih Lee
Seismocardiogram (SCG) or Mechanocardiography (MCG) is a non-invasive cardiac diagnostic method; however, previous studies used only a single sensor to detect cardiac mechanical activities which will not be able to identify location-specific feature points in a cardiac cycle corresponding to the four valvular auscultation locations. In this study, a multi-channel SCG spectrum measurement system was proposed and examined for cardiac activity monitoring to overcome problems like, position dependency, time delay, and signal attenuation, occurring in traditional single channel SCG systems...
October 25, 2016: IEEE Journal of Biomedical and Health Informatics
https://www.readbyqxmd.com/read/28111139/double-outlet-right-ventricle-with-an-intact-interventricular-septum-and-concurrent-hypoplastic-left-ventricle-in-a-calf
#4
D K Newhard, S W Jung, R L Winter, T Kuca, J Bayne, T Passler
A 3-day-old Hereford heifer calf presented for evaluation of lethargy and dyspnea, with persistent hypoxia despite supplemental oxygen therapy. A grade III/VI right apical systolic murmur was noted during cardiac auscultation. Echocardiography revealed a double-outlet right ventricle with an intact interventricular septum and concurrent hypoplastic left ventricle and tricuspid valve dysplasia. Post-mortem examination revealed additional congenital anomalies of ductus arteriosus, patent foramen ovale, and persistent left cranial vena cava...
January 19, 2017: Journal of Veterinary Cardiology: the Official Journal of the European Society of Veterinary Cardiology
https://www.readbyqxmd.com/read/27994302/modern-strategy-for-identification-of-congenital-heart-defects-in-the-neonatal-period
#5
Mediha Kardasevic, Ida Jovanovic, Jelica Predojevic Samardzic
INTRODUCTION: Congenital heart defects are the most common congenital anomalies and occur with an incidence from 0.8 to 1% per 1000 live births. In recent years, the pulse oximetry has become a strong candidate for detecting cyanogen congenital heart defects and in combination with routine clinical exam can improve diagnostic of congenital heart diseases. OBJECTIVE: To apply the modern algorithm for early detection of congenital heart defects in order to improve the diagnosis in the neonatal period...
October 2016: Medical Archives
https://www.readbyqxmd.com/read/27916238/variation-in-effectiveness-of-a-cardiac-auscultation-training-class-with-a-cardiology-patient-simulator-among-heart-sounds-and-murmurs
#6
Yutaka Kagaya, Masao Tabata, Yutaro Arata, Junichi Kameoka, Seiichi Ishii
BACKGROUND: Effectiveness of simulation-based education in cardiac auscultation training is controversial, and may vary among a variety of heart sounds and murmurs. We investigated whether a single auscultation training class using a cardiology patient simulator for medical students provides competence required for clinical clerkship, and whether students' proficiency after the training differs among heart sounds and murmurs. METHODS: A total of 324 fourth-year medical students (93-117/year for 3 years) were divided into groups of 6-8 students; each group participated in a three-hour training session using a cardiology patient simulator...
December 1, 2016: Journal of Cardiology
https://www.readbyqxmd.com/read/27817779/-identification-of-a-novel-jag1-mutation-in-a-family-affected-by-alagille-syndrome
#7
Ying Cheng, Shu-Tao Zhao, Li Guo, Mei Deng, Qing Zhou, Yuan-Zong Song
Alagille syndrome (ALGS) is an autosomal dominant disorder which is mainly caused by JAG1 gene mutation and can affect multiple systems including the liver, heart, eyes, skeleton and face. This paper reports the clinical and genetic features of an ALGS patient. A 2-year-and-9-month-old boy was referred to the hospital with the complaint of abnormal liver function and heart murmur discovered over two years. Jaundice of the skin and sclera was not observed. The child had a prominent forehead, left esotropia, depressed nasal bridge and micromandible...
November 2016: Zhongguo Dang Dai Er Ke za Zhi, Chinese Journal of Contemporary Pediatrics
https://www.readbyqxmd.com/read/27692980/-automated-grouping-of-terms-associated-to-cardiac-valve-fibrosis-in-meddra
#8
Hadyl Asfari, Julien Souvignet, Agnès Lillo-Le Louët, Béatrice Trombert, Marie-Christine Jaulent, Cédric Bousquet
AIM: To propose an alternative approach for building custom groupings of terms that complements the usual approach based on both hierarchical method (selection of reference groupings in medical dictionary for regulatory activities [MedDRA]) and/or textual method (string search), for case reports extraction from a pharmacovigilance database in response to a safety problem. Here we take cardiac valve fibrosis as an example. METHODS: The list of terms obtained by an automated approach, based on querying ontology of adverse drug reactions (OntoADR), a knowledge base defining MedDRA terms through relationships with systematized nomenclature of medicine-clinical terms (SNOMED CT) concepts, was compared with the reference list consisting of 53 preferred terms obtained by hierarchical and textual method...
July 21, 2016: Thérapie
https://www.readbyqxmd.com/read/27659352/automated-signal-quality-assessment-of-mobile-phone-recorded-heart-sound-signals
#9
David B Springer, Thomas Brennan, Ntobeko Ntusi, Hassan Y Abdelrahman, Liesl J Zühlke, Bongani M Mayosi, Lionel Tarassenko, Gari D Clifford
Mobile phones, due to their audio processing capabilities, have the potential to facilitate the diagnosis of heart disease through automated auscultation. However, such a platform is likely to be used by non-experts, and hence, it is essential that such a device is able to automatically differentiate poor quality from diagnostically useful recordings since non-experts are more likely to make poor-quality recordings. This paper investigates the automated signal quality assessment of heart sound recordings performed using both mobile phone-based and commercial medical-grade electronic stethoscopes...
October 2016: Journal of Medical Engineering & Technology
https://www.readbyqxmd.com/read/27591530/sudden-infant-deaths-from-undiagnosed-ventricular-septal-defect-report-of-two-autopsy-cases
#10
Rie Nishikata, Naho Kato, Miwako Suto, Mami Rinnou, Ikubumi Mizusawa, Naohito Kuroda
Ventricular septal defect (VSD) has a relatively non-aggressive clinical course; either spontaneous closure or causing congestive heart failure treatable with surgical intervention. We present two autopsy cases of sudden infant deaths from clinically undiagnosed VSDs. Case 1 was an 18-day-old boy. As the deceased coughed and became limp after feeding, he was carried to a hospital. Heart murmur was not auscultated there, so he was brought back to home. He presented severe dyspnea and then he was pronounced dead the next day...
September 2016: Legal Medicine
https://www.readbyqxmd.com/read/27591380/successful-management-using-airway-pressure-release-ventilation-for-severe-postoperative-pulmonary-edema
#11
Yoshihisa Morimoto, Takaki Sugimoto, Hiroki Arase, Fumiya Haba
INTRODUCTION: Postoperative pulmonary edema is a fatal adverse event after a cardiac surgery. We here report successful management using airway pressure release ventilation (APRV) for severe hypoxia with pulmonary edema after a cardiac surgery. PRESENTATION OF CASE: A 58-year-old man underwent an uneventful mitral valve repair. Immediately afterwards, the patient became agitated and made vigorous inspiratory efforts. His oxygen saturation dropped to 90%. Coarse inspiratory rhonchi were heard on auscultation, and copious, pink, frothy sputum was obtained with suctioning...
2016: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/27534982/assessment-of-cardiovascular-disease-in-the-donkey-clinical-echocardiographic-and-pathological-observations
#12
S L Roberts, J Dukes-McEwan
The Donkey Sanctuary (DS) owns 3500-4000 donkeys, estimated to be about 35 per cent of the UK population. Although postmortem surveys suggest a high prevalence of cardiovascular disease in donkeys, there is sparse clinical information about cardiovascular examination findings and echocardiographic findings in health and disease. In this cross-sectional study, auscultation findings were recorded, and in a subset of donkeys, echocardiography was used to screen for structural and functional cardiac disease. 202 donkeys were examined; 117 geldings and 85 females...
October 15, 2016: Veterinary Record
https://www.readbyqxmd.com/read/27518580/antemortem-diagnosis-of-a-left-auricular-appendage-herniation-through-a-partial-pericardial-defect-in-a-dog-with-degenerative-mitral-valve-disease
#13
C Misbach, P Pey, V Gouni, E Trehiou-Sechi, A M Petit, J Pouchelon, V Chetboul
A 14-year-old neutered male crossbreed dog was presented for weakness, cough and weight loss. Cardiac auscultation revealed tachycardia, arrhythmia and a grade V/VI left apical systolic heart murmur. Thoracic radiographs showed a large homogeneous soft tissue opacity in close contact with the cardiac silhouette in the left cranioventral mediastinum. Cardiac evaluation showed atrial fibrillation, degenerative mitral valve disease and a dilated left auricular appendage outside the pericardium consistent with herniation through a partial pericardial defect...
May 2016: Schweizer Archiv Für Tierheilkunde
https://www.readbyqxmd.com/read/27437661/prevalence-of-subclinical-rheumatic-heart-disease-in-eastern-nepal-a-school-based-cross-sectional-study
#14
Nikesh R Shrestha, Prahlad Karki, Rajan Mahto, Keshar Gurung, Naveen Pandey, Krishna Agrawal, Martina Rothenbühler, Philip Urban, Peter Jüni, Thomas Pilgrim
IMPORTANCE: Although rheumatic heart disease has been nearly eradicated in high-income countries, 3 in 4 children grow up in parts of the world where it is still endemic. OBJECTIVES: To determine the prevalence of clinically silent and manifest rheumatic heart disease as a function of age, sex, and socioeconomic status and to estimate age-specific incidence. DESIGN, SETTING, AND PARTICIPANTS: In this school-based cross-sectional study with cluster sampling, 26 schools in the Sunsari district in Eastern Nepal with 5467 eligible children 5 to 15 years of age were randomly selected from 595 registered schools...
April 1, 2016: JAMA Cardiology
https://www.readbyqxmd.com/read/27420021/heart-sound-and-lung-sound-separation-algorithms-a-review
#15
Ruban Nersisson, Mathew M Noel
Breath and cardiac sounds are two major bio sound signals. In this, heart sounds are produced by movement of some body parts such as heart valve, leaflets and the blood flow through the vessels, whereas lung sounds generates due to the air in and out flow through airways during breathing cycle. These two signals are recorded from chest region. These two signals have very high clinical importance for the patient who is critically ill. The lung functions and the cardiac cycles are continuously monitored for such patients with the help of the bio sound signal captured using suitable sensing mechanism or with auscultation techniques...
January 2017: Journal of Medical Engineering & Technology
https://www.readbyqxmd.com/read/27411841/an-unusual-finding-in-a-57-year-old-woman-with-new-onset-hypertension-and-a-diastolic-murmur
#16
Jason M Tarkin, James H F Rudd, David R Jayne, Rosemary A Rusk, Deepa Gopalan
CLINICAL INTRODUCTION: A 57-year-old woman presented to our clinic with breathlessness brought on while walking uphill. She had been recently diagnosed with systemic hypertension. There was no known family history of cardiac disease, or prior smoking habit. On examination, pulse was 73 bpm and blood pressure 155/73 mm Hg, which was asymmetrical in her arms. Auscultation revealed a readily audible early diastolic murmur in the aortic area and bilateral subclavian bruits. ECG showed sinus rhythm with no abnormality...
November 1, 2016: Heart: Official Journal of the British Cardiac Society
https://www.readbyqxmd.com/read/27359479/descriptive-outcomes-of-computer-assisted-auscultation-during-a-routine-cardiac-pre-participation-screening-in-athletes-224-board-61-june-1-11-00-am-12-30-pm
#17
Jeandre T Viljoen, Pierre L Viviers, Jo-Anne H Kirby
No abstract text is available yet for this article.
May 2016: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/27340571/the-auscultation-of-a-carbon-dioxide-embolization-event-during-endoscopic-vein-harvest
#18
Erik Strauss, Bradley Taylor, Michael Mazzeffi, Kenichi Tanaka, Patrick Odonkor
Endoscopic vein harvest in preparation for coronary artery bypass surgery has become a preferred method of procuring saphenous vein. Several case reports have documented carbon dioxide (CO2) embolization with this procedure as well as CO2 embolization during other laparoscopic surgeries (Markar et al., 2010). Although uncommon, the potential for CO2 entrainment through an open vein or through absorption by vascular structures exists and should be recognized (Lin et al., 2003). We report a case of CO2 embolization during EVH for a 77-year-old patient who underwent CABG that was identified early by the cardiac surgeon through the indirect auscultation of a mill-wheel murmur after the pericardium was opened...
2016: Case Reports in Anesthesiology
https://www.readbyqxmd.com/read/27147798/evaluation-of-diagnostic-methods-in-the-differentiation-of-heart-murmurs-in-children
#19
Zijo Begic, Senka Mesihovic Dinarevic, Senad Pesto, Edin Begic, Amra Dobraca, Izet Masic
INTRODUCTION: The most common clinical sign in pediatric cardiology is a heart murmur (organic and inorganic). Organic are sign of heart disease, while inorganic (basically divided into accidental and functional) murmurs occur on anatomically healthy heart. AIM: To determine the justification of the application of the methods of cardiac treatment. PATIENTS AND METHODS: Study included 116 children aged from 1 to 15 years, who were referred due to cardiac treatment to Pediatric Clinic, of Sarajevo University Clinical Center...
April 2016: Acta Informatica Medica: AIM
https://www.readbyqxmd.com/read/27142198/aortic-aneurysm-with-complete-atrioventricular-block-and-acute-coronary-syndrome
#20
Moacyr Magno Palmeira, Hellen Yuki Umemura Ribeiro, Yan Garcia Lira, Fernando Octávio Machado Jucá Neto, Ivone Aline da Silva Rodrigues, Maitê Silva Martins Gadelha, Yuri Santana do Carmo
BACKGROUND: Acute aortic dissection (AAD) is a highly lethal and prevalent cardiovascular emergency. AAD can develop into atrioventricular conductivity disorders caused by coronary artery dissection, with acute myocardial infarction (AMI) being the most frequent clinical sign. In many deceased patients, the diagnosis is not confirmed until autopsy, and 85 % receive the wrong therapy as a result of misdiagnosis. CASE PRESENTATION: A 49-year-old male patient presenting with prolonged, intense and sharp precordial pain radiating to his back, as well as cold sweats, nausea and vomiting, was admitted to the cardiac emergency service...
May 4, 2016: BMC Research Notes
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